Database Users

Vibrant unbrickable mode (you can recover from hard brick!!)

This was originally posted by AdamOutler and helped me a lot, so i think that EVERYONE who have a vibrant or an i9000 should know about it.
sorry if i´ve ressurected this post but it is too useful to get hidden.
Link to the original post:
http://forum.xda-developers.com/showthread.php?t=1273083&highlight=unbrickable
Introduction:
I'm not kidding when I say UnBrickable. Modifying the OM pins means you can boot from USB, UART or MMC. This makes the phone quite UNBRICKABLE. There is nothing you can do software wise to prevent the device from booting into this mode. We are communicating with the unrewritable, efused IROM on the processor. It's the thing that makes the system on a chip into a "system on a chip".I am here now to tell you how to turn your Samsung Droid Charge into a KIT-S5PC110 development board. The KIT-S5PC110 development board is the platform used to develop our phones. There are some differences between this mod and the official development platform. The S5PC110 has a removable internal SDCard and no touchscreen.
Why would you want to do this? When you plug in the battery and connect it to the computer in "off" mode, it will become an S5PC110 board awaiting download of a program to run. This occurs long before anything like software or firmware enters the processor. This is the IROM of the device awaiting commands or a power on signal.
Because it is accepting a memory flash, anything may be put onto the device to perform a boot sequence..... Apple iOS (iPhone4 has the same processor) WP7 (mango supports this processor).
This will be a replacement for JTAG once we are able to make some firmware. How could it possibly be better then JTAG? Let's count the ways....
1. The only part required is a wire.
2. No shipping time.
3. No cost for a box to interface the computer.
4. Permanent.
5. Can be done as a preventive measure.
6. Gives the ability to test new Bootloaders temporarily.
7. Allows development of the entire system.
8. Removes worry about flashing and acts as a backup.
After performing this mod:
Remove the battery, replace the battery, your phone will connect to the computer via USB and await commands. Otherwise it will pretty much act like a Vibrant. See the Special Instructions section.
Modification
You will need:
1. Get someone who knows what they're doing with a soldering iron. If they don't know what flux is, then they don't know what they're doing. You can send me a PM(or email my [email protected]) or Connexion2005(aka MobileTechVideos.com). Note: I do not work for/with mobiletechvideos.com.
2. soldering iron - make sure it's sharp, if it's not sharp, then sharpen it, flux it and retin it.
3. flux
4. solder
5. tweezers
6. A relay (possibly- for the wire within to use as a bridge)
performing the modification:
1. tear apart your phone... Make sure to take out your SIM and external SDCard before you do this.
1A. Remove the screws.
1B. Separate the top case from the bottom case
1C. disconnect the display connector and free the camera and button assemblies from the case.
1D. Remove the mainboard
****VIDEO OR PICTURES NEEDED*****
2. Perform the mod as follows: Replace the xOM5 resistor from the top position to the bottom position.
*OR: remove the xOM5 resistor and jumper the center pads of xOM5 to the center pads of xOM0 or xOM3.
Thanks to ChauncyG for the device board.
3. reassemble the phone.
Special Instructions
This replaces the battery charging sequence. The normal battery charging sequence can be activated by holding power for 4 seconds.
To turn on the device, and operate in normal mode, you must hold the power button for 5 seconds.
3 button Download mode works as usual, however you must not have the S5PC110 drivers installed on the computer. You can use your custom rom menu option, adb reboot download, or use a terminal to "reboot download". 301Kohm Factory Mode JIGs work as well, but you must press power to bypass the S5PC110 mode.
To enter recovery mod, press and hold power for 3 seconds, then hold volume+ and volume- until the screen comes on then release.
Conclusion
Congratulations. You now have a device which works like a KIT-S5PC110 with an OM Value of 29. Now get to developing some serious custom software. See here for setting up the UART output http://forum.xda-developers.com/show....php?t=1235219
reading material
Creating your own Samsung Bootloaders: http://forum.xda-developers.com/show....php?t=1233273
KIT-S5PC110 manual: http://www.mediafire.com/?94krzvvxksvmuxh
how to use DNW: http://tinyurl.com/dnw-how-to
Flash using openOCD and DNW: http://www.arm9board.net/wiki/index....penOCD_and_DNW
another DNW example: http://www.boardset.com/products/mv6410.php
ODroid dev center: http://dev.odroid.com/projects/uboot/wiki/#s-7.2
drivers and utilities
This will be an ever expanding list
Windows Drivers http://forum.xda-developers.com/atta...7&d=1312590673
Windows Download Tool DNW: http://forum.xda-developers.com/atta...8&d=1312590673
Windows Command Line Download Tool: http://forum.xda-developers.com/show...3&postcount=27
Linux DNW Utility: http://dev.odroid.com/projects/uboot/wiki/#s-7.2
firmware
One-Click Resurrector: http://forum.xda-developers.com/atta...5&d=1314762609
Bootloader Hello World by Rebellos http://forum.xda-developers.com/atta...7&d=1314105521
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
http://forum.xda-developers.com/attachment.php?
attachmentid=727808&d=1316712617

This trick saved my phone one mounth ago...but you must be really good in soldering
Sent from my SGH-T959 using XDA

mikka06 said:
This trick saved my phone one mounth ago...but you must be really good in soldering
Sent from my SGH-T959 using XDA
Click to expand...
Click to collapse
Yeah, and I lost U$100 because i have not seen this tutorial before....

I hard bricked my vibrant about 6 months ago, Odin, completely my fault. I hadn't seen the unbrick/mod yet so I sent it to Josh at mobile tech videos for JTAG. I came across this mod a day after I shipped. I sent Josh a message and he did the mod for me. Outstanding service, I highly recommend it if you love to flash. Don't wait until bricked. If you don't feel comfortable tearing apart your phone and soldering go to mobiletechvideos, quick professional service.
Vibrant
Ics Passion
Sent from my SGH-T959 using xda premium

I'm afraid your xda links are all broken, 404, not found.

cashmundy said:
I'm afraid your xda links are all broken, 404, not found.
Click to expand...
Click to collapse
Yeah,links are broken,later on ill try to find mirrors on google,
You can help me if you want to.

Really dead vibrant
Are you sure it can get a really dead vibrant back?
I've tried the button combo,the 301k jig nothing get it into download mode. It just completely dark no sign of live.

vtp said:
Are you sure it can get a really dead vibrant back?
I've tried the button combo,the 301k jig nothing get it into download mode. It just completely dark no sign of live.
Click to expand...
Click to collapse
It worked for all the people who tried that. I did it also and saved my vibrant. But you need perfect soldering skills or try to find someone to do it.
Sent from my SGH-T959 using XDA

help?
Hello friends
I tried to understand the instructions but I could not understand anything
Is anyone ready to upload a picture that explain it better?

how?
mikka06 said:
This trick saved my phone one mounth ago...but you must be really good in soldering
Sent from my SGH-T959 using XDA
Click to expand...
Click to collapse
can you explain how to do the mod?

you have to change a position of 1 resistor on the mainboard of your phone,
then install new drivers and the programs on your pc to get the special features of it.

Can you plz post high quality pics of this mode

khan_frd2002 said:
Can you plz post high quality pics of this mode
Click to expand...
Click to collapse
i can give you the thread links that i followed when i did this trick. It's so small as it's really hard to get a high quality picture. Just read every page, i remember some guys posted some usefull pictures
http://forum.xda-developers.com/showthread.php?t=1273083
http://forum.xda-developers.com/showthread.php?p=17858853#post17858853

Wish I wouldve sweden this some time ago. I'm on my second vibrant, geesh..

Bricked Galaxy S3 Experience [Now its working perfectly]

My Indian Friend gave me this phone No power,
It has response on Power supply when i trigger the Power Switch button, so i thought
there is something wrong with the boot or program.
My Jtag tools (medusa, riff, ort, etc) are no use since when i search the net and read about S3 jtag, i read this thing is not
open on s3 and all my tools doesnt support this phone yet. So i decided to do the Sdcard tricks on reviving Dead phones.
I always have Failed to copy error. I read E.V.A'S contribution post related to S3. He gave me a lot of information about this phone.
After 2 days of software trouble shooting i Decided to check the phones mobo and check every part of it.
when i look in the microscope i found out that I'm not the first to repair this phone.
I decided to change the IC (the tampered one). The IC with the red mark.
But it doesnt help.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
I dont know what this location jumper means
but out of curiousity I just try to remove it.
This phone has a bypass on EU location. I leave the 3 Location open.
When i inserted the battery
IT TURN ON!
hahaha
I know those location are not related with the power )
Its just happen or its my lucky day
I just want to tell a story about my experience on Bricked SIII
This is not a first time I recieved Dead S3
But most of them were not related to Software Issue so it can be easily fix.

What is the purpose of that 3 location jumper?
I did try to install different location, different language it doesnt affect the phones functionality.
I know samsung wont put it on the board without purpose but what is the purpose of that thing?

eyestrain said:
My Indian Friend gave me this phone No power,
It has response on Power supply when i trigger the Power Switch button, so i thought
there is something wrong with the boot or program.
My Jtag tools (medusa, riff, ort, etc) are no use since when i search the net and read about S3 jtag, i read this thing is not
open on s3 and all my tools doesnt support this phone yet. So i decided to do the Sdcard tricks on reviving Dead phones.
I always have Failed to copy error. I read E.V.A'S contribution post related to S3. He gave me a lot of information about this phone.
After 2 days of software trouble shooting i Decided to check the phones mobo and check every part of it.
when i look in the microscope i found out that I'm not the first to repair this phone.
I decided to change the IC (the tampered one). The IC with the red mark.
But it doesnt help.
I dont know what this location jumper means
but out of curiousity I just try to remove it.
This phone has a bypass on EU location. I leave the 3 Location open.
When i inserted the battery
IT POWER ON!
hahaha
I know those location are not related with the power )
Its just happen or its my lucky day
I just want to tell a story about my experience on Bricked SIII
This is not a first time I recieved Dead S3
But all most of them are not related to Software Issue so it can be easily fix.
Click to expand...
Click to collapse
I wonder what happens if you didn't replaced the IC and you just take the jumper off? Would it still be fixed?
Anyways this is Great Find! Might be helpful to ones experiencing SDS?
Sent from my GT-I9300 using xda app-developers app

if the SDS issue was a simple fix like this then it would be a miracle for those with "bricked" S3s.

thegh0sts said:
if the SDS issue was a simple fix like this then it would be a miracle for those with "bricked" S3s.
Click to expand...
Click to collapse
hahaha
Yeah, but i know its not related,
Just like I said on our local gsmforum i am being lucky
It will not fix any bricked s3 for sure.
I just want to share one of my experience on this kind of phone
Im sure its the IC which I replace.
By the way I want to know what is that location on board means?
I didnt put back the original by pass on EU

eyestrain said:
hahaha
Yeah, but i know its not related,
Just like I said on our local gsmforum i am being lucky
It will not fix any bricked s3 for sure.
I just want to share one of my experience on this kind of phone
Im sure its the IC which I replace.
By the way I want to know what is that location on board means?
I didnt put back the original by pass on EU
Click to expand...
Click to collapse
That IC is a power management IC by Maxell ?? correct me if I am wrong.

LG E900 Memory card not working problem solution

Hey guys,
I have found a solution to solve the hardware problem with the LG E900 Optimus 7,
showing the message 'Memory card not working' Your memory card has changed, is damaged or is non-compatible.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Flashing a new firmware or restoring images with zune does not solve the problem!
This message, if shown on a LG E900, implicates a hardware error with the NAND flash memory,
a Toshiba THGBM2G7D4FBAI9.
The memory chip is soldered to the top layer of the 2-layer mainboard, together with the led, sim card holding, head phone jack...
You can see it in the middle of this pic:
The hadware error is probably issued by broken solder joints, in turn probably issued by changes in temperature and/or physical exposure.
Following solution worked for me: (tried with one phone one month ago)
I heated the Toshiba memory chip with a heat tool with around 200 degrees Celsius (400 degrees Fahrenheit) for around ten minutes,
this is a technique sometimes used to repair broken graphic cards, please search google for this if you think there's something fishy going on here.
I used a 340 degree heat tool, with a 2cm distance first until I saw some solder balls, 'dripping' out, I increased the distance to 5cm.
After reasembling the phone works and does still work without problems.
Although this worked for me, it does not mean that it will work for you too.
Please try and comment, if it worked for you!!
Heating the memory chip should solve the problem not only temporary, if you get the same message some time afterwards, try again with more degrees (max 300) and/or a longer period (max 30min)
If you do not have the ability to heat the memory chip with a heat tool, you may trie to bake the whole mainboard layer. A problem could be a smelting head phone jack.
More information, pics at the www: manuga.bplaced.de
(i'm a new user and not allowed to post outside links)
If you find some language, logic or explanation mistakes in here, please tell me!
I hope that I find time to provide more information on the website mentioned above, I currently do not have much time to provide detailed phone dissasemble, assemble information, please search youtube for such vids.
Feel free to ask any questions in this thread or on my website.

Hope it works.
Going to try this out today, will let you know the results later...

yehuda92 said:
Going to try this out today, will let you know the results later...
Click to expand...
Click to collapse
Dear Guys,
I tried it (with Dremel Versatip tool with appropiate distance) and now phone even doesn`t react for on/off button. Nothing happens after switch on the charger.
Before "my fix" after charger on it shows "memory card error".
I assembled it couple of times in order to check if everything is on its place.
So now phone is completelly dead (in final nothings happen .
Any ideas?
rgds,
G.

Same problem...
Also gave this a shot, managed to get the solder to 'drip' out but straight after the chip itself actually caught on fire... perhaps a little too much heat? =P
Now can't boot past the LG logo with the top board attached. Strangely it boots up perfectly if I disconnect the top board, however this is somewhat useless since the digitizer and SIM are both located on this board. Perhaps a lost cause...

lukeavitch94 said:
Also gave this a shot, managed to get the solder to 'drip' out but straight after the chip itself actually caught on fire... perhaps a little too much heat? =P
Now can't boot past the LG logo with the top board attached. Strangely it boots up perfectly if I disconnect the top board, however this is somewhat useless since the digitizer and SIM are both located on this board. Perhaps a lost cause...
Click to expand...
Click to collapse
I had almost the same issue (I did not catch a fire on memory chip). After disconnecting top board phone boots, but because of unworking screen I can not proceed with anything.
After switching on the top board, phone does not want to start at all, not even giving me a LG logo on screen. No reaction on on/off button.
Have no more ideas what to do...?
rgds
G.

no boot only LG logo! Solved
I had a similar problem , my phone was frozen at LG start screen , i removed the memory board , i put it in the oven for 10 mins at 180 °C, put it back all together , and it worked!!!! i could save all my pics and video !!
THANKS a lot!!!
*pic in attachment

tanks so much, its worked for me, i have heat the memory chip with a heat tool for few minutes and ok.

I also attempted this repair. Removed the top part of the main board, insulated a few parts like the headphone jack with blu-tack, flooded board in flux, (even though none of it went under the chip...) Then I put the board in oven until infrared thermometer showed 240 degrees celcius on the chip and opened the oven door. After waiting for the board to cool down, cleaned with isopropyl alcohol, reassembled. Works, for the time being.. Thanks for info and ideas guys. :good:

I put it in the oven for 5 mins at 180 °C, it worked and I can recover all of my pictures. Thanks!

It worked! Thanks guys for help
Put it in at 180°C for 10 minutes.
All best.

MK809IV RK3188-T - Internet problems

Hello there!
I hope some of you could help me a bit! Yesterday I got a brand new MK809IV Android Mini PC
I wanted to install DroidMote Server from play store, but it required root. I tried to go to UGOOS.net and download their rooted version to their MK809IV (They don't look a like, but they had same model number).
It then bricked and after trying 20+ .img-files, I finally found one that could bring me the device back!
But now I can't turn on wifi or bluetooth - It says it does, but it doesn't! :'(
Can someone help me find the original 4.2.2. firmware for my device? I've found some pictures of it:
Picture 1:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Picture 2:
Picture 3:
Picture 4:
If anybody has a method or can be at any help.. I'm willing to do anything

patrickpetersen said:
Hello there!
I hope some of you could help me a bit! Yesterday I got a brand new MK809IV Android Mini PC
I wanted to install DroidMote Server from play store, but it required root. I tried to go to UGOOS.net and download their rooted version to their MK809IV (They don't look a like, but they had same model number).
It then bricked and after trying 20+ .img-files, I finally found one that could bring me the device back!
But now I can't turn on wifi or bluetooth - It says it does, but it doesn't! :'(
Can someone help me find the original 4.2.2. firmware for my device? I've found some pictures of it:
Picture 1:
Picture 2:
Picture 3:
Picture 4:
If anybody has a method or can be at any help.. I'm willing to do anything
Click to expand...
Click to collapse
I didnt bricked my device. But since kitkat isnt stable on mk809iv, and somehow the device asked me for a password on boot that i didnt create. I managed to downgrade to Android 4.2.2 wit help on thuis site
http://androidstick.nl/android-stick-firmware/
its Duchten, but you can set the site on any language you want.
Hope it helps you to.

HI, I did the same mistake. Did you already manage to fnd a solution?
Thanks for any help.

Working rom
I have the same stick with the same problem. I found a rom that has working WiFi again
w w w .freaktab.com/showthread.php?14028-Neomode-Custom-Rom-MK809III-MTK-WiFi-Version-0-9
Best of luck!

mergko said:
I have the same stick with the same problem. I found a rom that has working WiFi again
w w w .freaktab.com/showthread.php?14028-Neomode-Custom-Rom-MK809III-MTK-WiFi-Version-0-9
Best of luck!
Click to expand...
Click to collapse
It works with the device pictured above? How do I install custom Roms pls help

I have the same Mini PC I think
The roms in this post don't work for me. None I have found are the original either.
I'll add photos of my stick to see if they are the same. Maybe someone else has bought the same device and can backup their rom for us.

I found a rom that may work for you.
I just installed a rom I found that works. Its not the original but I can now use wifi and bluetooth and its Kitkat 4.4. It may work for you. It is MTK rom - probably stands for Mediatek which is the chips on my mini pc.
http :// ugoos.net/index.php?route=product/download/get&download_id=47
To install I used RK Rom dumper tool, but there are others. Rom dumper is pretty simple though, just load the firmware and click update. Just have the mini pc connected to your computer in recovery mode. Hold the reset/recovery button on the side as you plug the USB into the side Micro port. You computer should recognise it as a new device and ask for drivers. Run rom dumper go to second tab and click firmware button, choose your rom, then click update. Let it do its thing and the mini pc will reboot a couple of times and it should work.

MK809IV
There is one big problem with the MK809IV which was not in the III version - Heat dissipation. I recently purchased one of these devices and it crashed and recycled to boot sequence. I eventually got it to work, but when I tried the Kodi on line streaming app it crashed, it was an older version, which I removed and updated. I also tried an alternative program Internet Radio (V.Tuner) I found as long as I did not use the streaming apps, it worked, obviously indicating a high CPU usage problem.
By the way that that red plastic slider switch does nothing its not connected to anything
Diagnostics:
I found that the CPU Rockchip 3188 was reaching up to 50C with a thermal sensor attached to the chip. With the open case, I actually got Kodi to work for a few minutes, during that period the CPU rose to above 53.5C and shut down. The chip is a quad core and as such needs adequate ventilating and cooling.
Using an old Pentium Flat heat sink, I coated the surface of the chip with thermal paste and clamped the heat sink to the chip of one corner of the sink. This has to be done out of the case. (Be careful not to damage the reset button beside the CPU) With the heat sensor attached under the plastic hobby clamp. I again ran Kodi and the maximum temperature was around 41C a reduction of 10C after listening to music on line the device work seamlessly for several hours. The maximum temperature reached was 45.6C which appears to be within the tolerance of the CPU chip.
Conclusion:
Poorly designed and inadequate ventilation. No heat sinking of CPU under continuous use. At present I am awaiting seller's response on EBay, have given them a full report of the problem with this model, which many buyers are experiencing.
Solution:
Not recommended to buy, there are now Android Media boxes available for a few dollars more which have a proper well ventilated housing and appropriate cooling devices. With full internet streaming plus DTV PVR and many other functions.
Running a quad core chip in such a confined space is ridiculous! Might have been OK for the earlier single core chips on the MK 802!
Have a nice day: I am a retired Electronics Engineer with 65 years experience in the Electronics and Radio business.

MK809IV wifi fix
Hey guys I was looking around and noticed this thread. Figured I would just drop a message for anyone that has one of these. I noticed yesterday when playing with the unit that the odd time I would actually get wifi reception when moving it around. I took it apart and re-located the antenna. Now I can stream fine from 20 feet away. I posted the fix for you guys here and showed you what needs to be done. If you don't have the red slider like I do, cut a slot in the side of the unit and leave the antenna hanging out of the side. (btw, I just joined and saw the antenna above picture is installed correct, unlike mine was, but I don't have issues with my unit any further. Looks like a different chipset as well)
I still have not resolved the Bluetooth issue, but I think I have an idea. I believe they are using the same antenna for both the bluetooth and wifi which may be causing the issue. I may try to separate them at a later time... but for now it is working so I am not messing with it.
I posted the video.... but it won't let me. Search MK809IV media center, S805 WiFi fix in Youtube if you want to see how to get it running.

Mk809iv rk3188-t
Had a real tussle with the Chinese seller, opened a dispute on EBay and he agreed to refund. Then told me he would send another. After a week of garbage reverted to Paypal dispute and sent it back. Its arrived in China so refund in full will be coming shortly. Fast becoming very disillusioned with Chinese sellers on Ebay, they insult you by offering $1 compensation etc and lie to Ebay about what they will do. If you have any problems, best to open a dispute via Paypal, they are far more efficient and at least you get your money back

Please reupload that rom

How do you know if your GPS Hardware working or not

How do you know if your GPS working or Hardware defective
I install Dr. Ketan L16 version ROM for my note 4 and did all the instruction to full wipe and install clean ROM but my GPS not working properly ( it s keep bouncing while I drive my can and never stayed in the road but when I reach my destination GPS helper sound say you arrived to your destination although the arrow for direction does not accompany me and there is no one telling trun right or turn lift even though I make sure that I did on the helper to speak while I drive) so my conclusion is it is not working as it should be I contact Dr. Ketan and he replied to me that there is no problem and no one report that tere is a GPS problem so I would like to know and want your help on how to discover if it is GPS haredware or software problem in my note 4 my device is N910f please I am really disparete to know the solution.
please help me I do not want to change Dr. Ketan ROM it is really rock if you have a similar powerful ROM tell me it's name I tryied Kuby rom also it's very good but I notice some battery drain even though I do not use my phone and no wifi and I am not using it it drop down from 100 to 90 present in one hour also I want to mention that my Battery is brand new.

I had the same problem. My GPS used to work well but someday when I needed it, I discovered it was not working anymore. I tried many different roms, many tweaks, many apps, nothing helped, my GPS was next to unusable. I finally found the strength to crack it open. The GPS connectors were not touching the back of the phone where the antenna is, no connection was made and so the GPS was not working. I raised the pins just a little and now everything is perfect. It seems to be a common problem among Note 4 users. Opening N4 is not the easiest thing in the world, but if I have made it, then many people should be able too.
First thing to do is try this app. If you cannot get a strong lock in 1 minutes max, maybe you should consider the hardware problem.

thank you man I will try but please tell me if you have a trusted apk that can tell you weather your GPS hardware is working or not. or something similar to this.

See after installation this is what I got
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Sent from my SM-N920G using XDA-Developers mobile app

when i make update agps
i get connection failed

Melissakis said:
I had the same problem. My GPS used to work well but someday when I needed it, I discovered it was not working anymore. I tried many different roms, many tweaks, many apps, nothing helped, my GPS was next to unusable. I finally found the strength to crack it open. The GPS connectors were not touching the back of the phone where the antenna is, no connection was made and so the GPS was not working. I raised the pins just a little and now everything is perfect. It seems to be a common problem among Note 4 users. Opening N4 is not the easiest thing in the world, but if I have made it, then many people should be able too.
First thing to do is try this app. If you cannot get a strong lock in 1 minutes max, maybe you should consider the hardware problem.
Click to expand...
Click to collapse
The GPS connectors were not touching the back.
can tell with the picture where they are located
thanks
regards.:angel:

so did you see my picture what does it indicate shall I take my phone to workshop to fix is it hardware problem ?

faisal000000 said:
so did you see my picture what does it indicate shall I take my phone to workshop to fix is it hardware problem ?
Click to expand...
Click to collapse
I do not think that there's an app to definitely tell you that your GPS hardware is faulty. The app you used gives only clues and your picture indicates that your GPS is not receiving any satellite signal. Mine used to show the same thing. The GPS pins are located on the upper right corner of the phone, as you watch the phone from the back.
This video shows how to open Note 4, it helped me a great deal.

I do not think that there's an app to definitely tell you that your GPS hardware is faulty. The app you used gives only clues and your picture indicates that your GPS is not receiving any satellite signal. Mine used to show the same thing. The GPS pins are located on the upper right corner of the phone, as you watch the phone from the back.
This video shows how to open Note 4, it helped me a great deal.
--------------------------------------------------------------------------------------
Many and many and so many thanks to your help today I am going to take my phone to a work shop and I will try the app after that and post a screen shot after that
You really helped me a big deal and a big time. at least now I know what I should do. it's all thanks to you. man

faisal000000 said:
Many and many and so many thanks to your help today I am going to take my phone to a work shop and I will try the app after that and post a screen shot after that
You really helped me a big deal and a big time. at least now I know what I should do. it's all thanks to you. man
Click to expand...
Click to collapse
You are welcome my friend. If this is actually the problem, then it's easy to fix, once the device is open. And maybe you should tell the technician to put a tiny piece of paper under the GPS pins, so they cannot loose connection again. I did not do that and now I'm just waiting for the pins to get loose again, so I can open it again and fix it once and for all.

In any case ask a moderator to move the topic to Q&A section!

please do not move it just yet today I am going to a workshop and if it's a GPS pin problem I will report with picture then you can close it and remove it... please just wait

You can try this:
Top 5 Best Apps to Test Hardware on Android
http://techviral.com/best-apps-test-hardware-android/
-sent via http://techviral.mobi

I sold my phone and my apology to Dr.ketan it was hardware issue and no one can fix it in my country They said that the Gps near the motherboard and any strong heat could damage the phone and rend it un used ...so yeah it was hard ware ..I am planing to buy new note 4 with exenous not qualcom because its no more sold in my country ...can you sugest me anything or is n910f like n910g with no vital deffernce I do not want it to over heat or battery drain so please help me out
Sent from my GT-I9300 using XDA-Developers mobile app